Law enforcement sources have identified 21-year-old Patrick Crusius as the suspect in Saturday's deadly shooting near a Walmart and a shopping mall in El Paso, according to ABC News.

El Paso Walmart shooting suspect Patrick Crusius pleads not guilty during his arraignment in El Paso, Texas, Oct. 10, 2019.

EL PASO, TX - AUGUST 4: In this handout photo provided by the El Paso Police Department, Patrick Crusius, 21, poses for a booking photo August 4, 2019 in El Paso, Texas.

The Mexican Consulate is holding a remembrance ceremony on Friday morning, Aug. 1, for the victims of the Walmart shooting, ...

Yolanda Tinajero sat across the courtroom from the man who murdered her brother, Arturo Benavides, and 22 other people, ...

Alleged El Paso mass shooting suspect hit with federal hate-crime charges Patrick Crusius, 21, pleaded not guilty in October to capital murder charges after being indicted by an El Paso County ...

Texas state police cars block the access to the Walmart store in the aftermath of a shooting in El Paso, Tx., Saturday, Aug. 3, 2019.